4t65 going from 3.69 to 3.41

[scoggin]

I have an 06 'Bu SS 3.9l with the 4t65 trans. it has the 3.69 gearing in it, and i am going to a 3.41(swapping in the 3.05 diff) just to see what happens. I shouldnt have to change the sprocket ratio, but would i have to change the drive ratio from a 3.69 to a 3.41. it is going to use the same 30 tooth wheel that is on the 3.29 diff.

[Bandit gs]

Yes, diff ratio has changed, TC functions, shifts etc. will be off.

[scoggin]

ok yah ill be changing all of that anyway on the TCC for drag racing, so it doesnt matter on that.